Plocamium cartilagineum. Site: White Cliffs, Church Bay, Rathlin Island 
 Plocamium cartilagineum. Event number: 19850704/03. Site: White Cliffs, Church Bay, Rathlin Island. 1985-07-04. Photograph © Ulster Museum. (11/11) 
 Ulster Museum (2026). Photograph of Plocamium cartilagineum. Site: White Cliffs, Church Bay, Rathlin Island. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_10879.jpg. Accessed on 2026-11-04